xref: /original-bsd/lib/libc/string/memchr.c (revision 61b6c03f)
1 /*
2  * Copyright (c) 1985 Regents of the University of California.
3  * All rights reserved.  The Berkeley software License Agreement
4  * specifies the terms and conditions for redistribution.
5  */
6 
7 /*
8  * Sys5 compat routine
9  */
10 
11 #if defined(LIBC_SCCS) && !defined(lint)
12 static char sccsid[] = "@(#)memchr.c	5.2 (Berkeley) 86/03/09";
13 #endif
14 
15 char *
16 memchr(s, c, n)
17 	register char *s;
18 	register c, n;
19 {
20 	while (--n >= 0)
21 		if (*s++ == c)
22 			return (--s);
23 	return (0);
24 }
25